805 Sour
- THC
- 22–24%
- Flowering
- 7–9 wk
- Terpene
- Limonene
- Effect
- Relaxed
91 Royale strain
Bred by Swamp Boys Seeds · Lemon Royale
Strain facts
Checked Oct 21, 2026 · 6 sources
91 Royale is a hybrid that's intermediate to grow. It was bred by Swamp Boys Seeds from Lemon Royale. Its THC is about 20% (sources say 18–22%), milder than 54% of the 2,347 strains in our database that list THC. It flowers in about 9 weeks (sources say 8–10 weeks).
Learn to grow 91 Royale: Indoor & Outdoor Growing course, $199
- Type
- Hybrid
- THC
- About 20%18–22% across 3 sources
- Top terpenes
- Limonene citrus
- Myrcene earthy, musky
- Caryophyllene peppery, spicy
- Lineage
- Lemon Royale
- Breeder
- Swamp Boys Seeds
- Grow difficulty
- Intermediate1 source
- Flowering
- About 9 weeks8–10 weeks across 2 sources; the breeder lists 9 weeks
6 sources for this profile
- Leafly public strain listing
- Weedmaps public strain listing
- Breeder information: Swamp Boys Seeds
Grow facts
- SeedFinder (breeder listing: Swamp Boys Seeds) Flowering and grow setting
- AllBud (strain database) THC
- Crop King Seeds (seed bank) CBD, difficulty, flowering, THC, yield indoor and yield outdoor
Grow facts come from the breeder first, then seed banks and strain databases. With 2 sources we show the range and the middle; with 3 or more, the range and the median, after leaving out values far from the rest. The breeder's own value is the anchor, unless it is far from every other source (outside their range and more than 20% from their median); then we show the full range and the median of all of them. A fact from a single source is marked "1 source", and a fact no source lists is left out. Yields are converted to one unit: indoor per square meter, outdoor per plant.
CTU writes every profile from these facts; we do not copy other sites' descriptions. Values that are a generic default in the source data are left out. Last checked Oct 21, 2026.
Source: CTU strain dataset (public strain listings and breeder info, checked by CTU), verified Oct 2026. Potency, flavor and effects vary by grower, batch and plant. Facts no source lists are left out.
How to grow 91 Royale
The grow facts a breeder or public strain listing gives for 91 Royale.
- Flowering time
- About 9 weeks8–10 weeks across 2 sources; the breeder lists 9 weeks. Slower than 51% of strains with a listed time
- Yield indoor
- About 450 g/m²400–500 g/m² (13.1–16.4 oz/ft²) · 1 source
- Yield outdoor
- About 550 g per plant500–600 g per plant (18–21 oz) · 1 source
- Difficulty
- Intermediate1 source. One of 884 intermediate-rated strains
- Grow setting
- Indoor and outdoor1 source
Flowering window (weeks after the switch to 12/12)
- 1
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- 4
- 5
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- 8
- 9
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- 14
Sources: the breeder, seed banks and strain databases listed under sources, checked Oct 2026. Percentages compare with every strain in our database that lists the same fact.
Learn to grow 91 Royale: Indoor & Outdoor Growing course, $199
About 91 Royale
91 Royale is a hybrid cannabis strain attributed to Swamp Boys Seeds. Lineage on record: Lemon Royale.
91 Royale THC level
Public listings give 91 Royale a THC level of 22%, which is around the middle of the range. Compared with all strains in our research dataset that have their own THC figure, it is higher than roughly 61% of them. Potency varies by grower, batch and lab, so read these numbers as typical values, not guarantees.
What does 91 Royale smell and taste like?
Flavor notes reported for 91 Royale: lemon, earthy and sweet. The terpenes listed most often are limonene (citrus), myrcene (earthy, musky) and caryophyllene (peppery, spicy). Limonene is the lead terpene for about 21% of the high-confidence strains in our dataset, so it is a less common lead. Terpenes shape smell and taste; their levels change from batch to batch.
Reported effects of 91 Royale
People who have tried 91 Royale most often report feeling euphoric, energetic, uplifted, creative and talkative. These are user reports, not promises. Effects differ from person to person and depend on dose, setting and tolerance.
91 Royale family tree
Its parents, from published lineage.
Parents
This strain
91 RoyaleHybrid · 18–22% THC · 8–10 wk
Similar strains
Matched on shared parents, top terpenes, type and THC. Never on medical use.
9D4
- THC
- 19–25%
- Flowering
- 7–9 wk
- Terpene
- Caryophyllene
- Effect
- Energetic
Alien Breath
- THC
- 22%
- Flowering
- 8–9 wk
- Terpene
- Limonene
- Effect
- Tingly
- Difficulty
- Intermediate
Black Cherry Pie
- THC
- 16–26%
- Flowering
- 8–9 wk
- Terpene
- Myrcene
- Effect
- Happy
- Difficulty
- Beginner
- Height
- Short
Where to buy
Find licensed dispensaries in your state
Only state-licensed stores, checked against official license lists.
Grow it
Flowering time, height and difficulty from the sources, then the full method in the Growing course.
